You could go with game making wizards (such as MultiMedia Fusion, GameMaker, etc.) or build up a toolchain by yourself, using for example:
- Mappy or TileStudio (for tile based games - both of them provide template code for scrolling)
- Whatever beginner-oriented programming language (better for you if it has GUIs with editor for own-tool programming - just in case you will need)
- Painting program[s] (try Blender's composing functionality, as you should find it useful)
- Libraryes (most basic dialects comes with a good library binding amount)
In example, a good starting point would be using SDLBasic, GIMP + Blender, Mappy, FlatLand physics and a simple AI library.
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Bye, Berserk.
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